Superconducting transition-edge bolometer arrays for ultra-low power radiometry

Author

Grossman, E.N. ; Chervenak, J.A. ; Irwin, K.D. ; Reintsema, C.D. ; Allen, C. ; Moseley, S.H.

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

fYear

2000

fDate

14-19 May 2000

Firstpage

349

Lastpage

350

Abstract

A new generation of ultra-low power bolometer arrays is under development for low background infrared astronomy. This paper describes radiometric measurements on such bolometers using a cryogenic blackbody source with accurately calculable throughput. Because of the very long wavelengths used, roughly 100 /spl mu/m-1 /spl mu/m, the absorbed radiant power differs substantially from that in a classical radiometry measurement, where it would be given by the geometric throughput with small "diffraction corrections".

Keywords

SQUIDs; bolometers; cryogenic electronics; infrared astronomy; radiometry; superconducting arrays; 100 micrometre to 1 mm; absorbed radiant power; cryogenic blackbody source; low background infrared astronomy; radiometric measurements; superconducting transition-edge bolometer arrays; ultra-low power radiometry; Astronomy; Bolometers; Cryogenics; Extraterrestrial measurements; Power generation; Power measurement; Radiometry; Superconducting photodetectors; Throughput; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2000 Conference on

Conference_Location

Sydney, NSW, Australia

Print_ISBN

0-7803-5744-2

Type

conf

DOI

10.1109/CPEM.2000.851019

Filename

851019